Do you hunt solo, or do you need something universal for different purposes?
For hunting, I'd recommend checking out Gaia GPS or Maps.me - both work without internet, show topography, and let you save your routes. Gaia's better for marking points of interest (camps, salt licks, and stuff like that) - it's specifically designed with field work in mind, but it requires a paid subscription. Maps.me is simpler to use and free, though it has fewer features. There's also OsmAnd - really powerful and flexible, but the interface is more complicated. On the plus side, it's completely free and you can download offline maps without any limits.